Re: [PATCH] net: mv643xx_eth: Add GRO support

From: Sebastian Hesselbarth
Date: Thu Apr 11 2013 - 12:59:16 EST


On Thu, Apr 11, 2013 at 5:32 PM, Willy Tarreau <w@xxxxxx> wrote:
> On Thu, Apr 11, 2013 at 05:27:03PM +0200, Sebastian Hesselbarth wrote:
>> I don't have a strong opinion on whether Soeren's or your proposal should
>> be submitted. But I insist on having one of them in, as GRO significantly
>> improves the common use case, is enabled by default, and not as
>> constrained as LRO.
>
> I agree, use yours first, but we should keep an eye on this. Since you have
> everything to run a test, please try to see if you can get netperf to run
> over IPv6, I'm sure the NIC doesn't handle it.

Willy,

out of curiosity I replayed all tests using netperf/netserver with -6 which
enables ipv6. The overall results remain quite the same here:
enabling support for GRO gives a huge improvement in achievable
throughput, and the difference between Soeren's and your patch is
neglectible.

Sebastian
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